Improvement in steam-engines



. NITED STATES PATENT OFFICE.

CHARLES C. WAGGONER, OF ST. JOHNS, OHIO.

IMPROVEMENT IN STEAM-ENGINES.

Specication forming part of Letters lPatent No. 98,449, dated December28, 1869.

To all whom fit may concern.- d

Be it known that I, (l. C, WAGG'ONER, of St. J ohns, in the county ofAuglaize and State of Ohio, have invented a new and useful Improvementin Steam-Engines 5 and I do hereby declare that the following is a full,clear, and exact description of the construction and operation of thesame, reference being had to the accompanying drawings, makin g a partof the specication, in Which- Figurc l is a side elevation, Fig. 2 is alongitudinal vertical section, Fig. 3 is an end elevation, and Fig. 4 isa transverse vertical section, of cylinder, showing packing-ring andarrangements for tightening the same.

This invention consists, first, in a novel and peculiar mechanism forshifting the valves, whereby this operation may be performed inone-sixteenth of the time ot' the stroke; second, in connecting thevalve-levers by a right and left hand screw, so as to increase ordecrease the amount of steam entering the cylinders at the will of theengine; third, in a novel and peculiar mechanism for tightening thepacking-rings about the piston.

In the drawings, B. is the engine-bed, upon which rest the twohorizontal cylinders I I, the pistons L L of which are operated by onecross-head, N, carrying two pitmen, o o, the ends of the cross-headplaying in guide I), one on each side of the bed, and the two pitmenbeing connected with two cranks, one on each end of the flywheel shafta.

AE is an arrow-headed arm, projecting from said shaft a, theinclinedhead of which comes in contact, as the arm moves downward during therevolution of the shaft, with frictionwheels F, and, as the arm movesupward, with a friction-wheel, F', saidwheels being placed in the endsof a horizontal slide, D, movi-ng in the bed R, said slide having a pin,d, projecting from it and passing through a slot made lengthwise of thelever B, which lever is jointed at its lower end below the point wherethe pin d passes through it to the bed It. Hence the movements of theslide D impart a vibrating motion to the lever B, which it communicates,by means of the connectingrod H, to the .valve-lever a', projecting fromthe valve-stem A, extendingoutside the steamchest S, there being onevalve at each end of the latter, the levers a of which are connected byrods G G, having a right and left screw connection, by means ot' whichthe said rod G may be lengthened or shortened at pleasure, in order toincrease or diminish the openings of the steam-ports. The valve-stems A,having a vibrating motion imparted, -as above specied, communicate thesame to the crescent-shaped valves A', and thus alternately open andclose the ports opening out of the live-steam chamber J. Each valve Aalternately admits steam from the chamber J to the cylinderl, and out ofthe cylinder I into the exhaust-steam chamber S.

T T are oil-cups communicating with the valves by tubes t.

Fig. 4 shows the manner of tightening the piston-packing when loose,wherein c is the split packing-ring, and c elbow-springs for tighteningit, the elbow-springs being pivoted upon pins projecting horizontallyfrom the piston. Y

d is the rotatable stress-head, as I call it, placed loosely upon thepiston-rod, having pins d in its outer side andnear its rim, which, onturning the stress-head, force up the elbowsprings against the packing.The stress-head is held in the proper position by the followerscrew e,and is rotated by means of a lever inserted in the holes in itsperiphery.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent,is

l. The arrow-headed arm E, slide D, lever B, and valve-levers a',combined and arranged substantially as set forth.

2.v The rod G, having a right and left screw connection, combined withthe valve-levers a', as and for the purpose described.y

3. The rotatable stress-h ead d, provided with pins d', in combinationwith follower-screw e, elbow-springs c', and packing-ring c,substantially as specified.

CHARLES C. WAGGONER.

Witnesses:

' WILLIAM BUSH,

G. M. ROGERS, LEWIS P. BAYLIFF.

